| 1 | G & N Oil & Gas LLC | Asher, OK 74826 | Oil & Gas Operator | Aug 2024 |
| 2 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 3 | Gastar Exploration LLC | Tulsa, OK 74136-1921 | Oil & Gas Operator | Sep 2024 |
| 4 | Gda Investments Inc | Oklahoma City, OK 73123-0403 | Oil & Gas Operator | Oct 2024 |
| 5 | Genesis Inc | Seminole, OK 74818-1647 | Oil & Gas Operator | Sep 2014 |
| 6 | Genesis Petroleum Corp. | Fort Worth, TX 76116-7151 | Oil & Gas Operator | Mar 2011 |
| 7 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 8 | Geodyne Resources Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 9 | Geoex Resources Inc | | Oil & Gas Operator | Jan 1997 |
| 10 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 11 | Giant Petroleum Corp | Jefferson, OH 44047 | Oil & Gas Operator | Dec 1990 |
| 12 | Gibraltar Petroleum Corporation | Mabank, TX 75147 | Oil & Gas Operator | Nov 2008 |
| 13 | Gill Jet C Dba Jetco Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Dec 2023 |
| 14 | Gillham Oil & Gas Inc | Shawnee, OK 74801-3547 | Oil Operator | May 1997 |
| 15 | Gillham Paul | Maud, OK 74854 | Oil & Gas Operator | Apr 2023 |
| 16 | Glacier Petroleum Co Okla Inc | Edmond, OK 73013-1977 | Oil & Gas Operator | Oct 2024 |
| 17 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2024 |
| 18 | Gloco LLC (The) | Ada, OK 74820 | Oil & Gas Operator | Sep 2024 |
| 19 | Gloria Corporation The | Ada, OK 74821-0297 | Oil & Gas Operator | Sep 2014 |
| 20 | Golden Circle Production Co | Seminole, OK 74868 | Oil & Gas Operator | May 2002 |
| 21 | Gomaco Inc | Tulsa, OK 74103-5061 | Oil & Gas Operator | Apr 2015 |
| 22 | Gomaco Operating Company | Tulsa, OK 74115 | Oil & Gas Operator | Sep 2024 |
| 23 | Goodnight & Laird | St Louis, OK 74866 | Oil & Gas Operator | Sep 2024 |
| 24 | Goodnight C A Dba C & M Oil Company | Tecumseh, OK 74873-4825 | Oil Operator | Jan 2013 |
| 25 | Goodnight Lindell D | St Louis, OK 74866 | Oil Operator | Feb 1992 |
| 26 | Gordon Brothers Oil Company | Stroud, OK 74079 | Oil & Gas Operator | Jul 2017 |
| 27 | Gordon Robert Oil Company | Stroud, OK 74070-0366 | Oil & Gas Operator | Jul 2001 |
| 28 | Gouker & Harris | Meeker, OK 74855-0685 | Oil Operator | Jan 2013 |
| 29 | Grand Resources Inc | Tulsa, OK 74137 | Oil & Gas Operator | Dec 2024 |
| 30 | Grant Petroleum Corporation | Horseshoe Bay, TX 78657-8926 | Oil & Gas Operator | Dec 2014 |
| 31 | Grayson Operating LLC | Ada, OK 74820 | Oil & Gas Operator | Sep 2024 |
| 32 | Green Energy Company | Okmulgee, OK 74447 | Oil & Gas Operator | May 2013 |
| 33 | Green Operating Company, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Aug 2024 |
| 34 | Green'S Drillng & Mud Ser Inc | Konawa, OK 74849 | Oil Operator | Jan 2013 |
| 35 | Greenlee Oil And Gas LLC | Norman, OK 73072 | Oil & Gas Operator | Aug 2024 |
| 36 | Griffin Well Service Inc | Konawa, OK 74849-9710 | Oil & Gas Operator | Sep 2024 |
| 37 | Gugli Corporation | Byng, OK 74820 | Oil & Gas Operator | Sep 2014 |
| 38 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Nov 2024 |
| 39 | Gypsyglenn Oil Company LLC | Tulsa, OK 74119-4809 | Oil & Gas Operator | Oct 2024 |